Re: recycling 1/5 year old, untreated fuel
I put approx 5-8 year old fuel from my 1951 Chevy into cans for the lawnmowers. It was non ethanol fuel but smelled stale, and it ran just fine... My dad pumped about 20 gallons of 2-3 year old fuel out of the main tank from his old boat and put 5 gallons into his 1972 C10 ( 350 Chevy/ Qjet ) and the rest was put into cans and used for his lawn mower and had almost enough gas for the season, his mower used as much oil as gas, but it ran just fine if it was kept full of oil.